So definieren und initialisieren Sie Variablen in drools-Regel

Ich bin mit drools 6.1. Ich habe einen sabber-Datei. Ich möchte so etwas wie dies tun.

import static com.softech.vu360.autoalert.util.Utility.getCurrentDate;
import static com.softech.vu360.autoalert.util.Utility.getDate;
import static com.softech.vu360.autoalert.util.Utility.getMonthNameFromInt;
import static com.softech.vu360.autoalert.util.Utility.getExpiryDate;
import static com.softech.vu360.autoalert.util.Utility.getEmailDate;
import static com.softech.vu360.autoalert.util.Utility.getWeekOfYear;
import com.softech.vu360.autoalert.model.LicenseCredential;
import com.softech.vu360.autoalert.model.Learner;
import com.softech.vu360.autoalert.CsvFileWriter;
import java.time.LocalDate;
import java.util.Date;

global com.softech.vu360.autoalert.CsvFileWriter learnerCsvFileWriter;

function void processData(LicenseCredential licenseCredential, CsvFileWriter learnerCsvFileWritern, LocalDate expiryDate, LocalDate emailDate){

    Learner learner = new Learner();
    learner.setFirstName(licenseCredential.getFirstName());
    ...
    learnerCsvFileWriter.add(learner);

}

rule "Renewal alert for 60 days"
when
    licenseCredential : LicenseCredential()

    $courseCompletionDate : licenseCredential.getCourseCompletionDate()
    $renewalDeadlineDay : licenseCredential.getRenewalDeadlineDay()
    $renewalDeadlineMonth : licenseCredential.getRenewalDeadlineMonth()
    $currentDate : getCurrentDate()
    $dayOfMonth : $courseCompletionDate.getDate()
    $month : $courseCompletionDate.getMonth()
    $expiryDate : getExpiryDate(licenseCredential)
    $emailDate : getEmailDate(2, licenseCredential)
    $localDate : LocalDate.now()
    $intRenewalDeadlineDay : Integer.valueOf($renewalDeadlineDay)
    $intRenewalDeadlineMonth : Integer.valueOf($renewalDeadlineMonth)

    (
        eval($renewalDeadlineDay == "0" && $renewalDeadlineMonth == "0") && 
        eval($currentDate.after(getDate(2, $dayOfMonth, $month + 1))) && 
        eval($currentDate.before(getDate(1, $dayOfMonth, $month + 1 ))) &&
        eval(getWeekOfYear($localDate.toString()) == getWeekOfYear($emailDate.toString()))
     ) ||
    (
        eval($currentDate.after(getDate(2, $intRenewalDeadlineDay, $intRenewalDeadlineMonth))) &&
        eval($currentDate.before(getDate(1, $intRenewalDeadlineDay, $intRenewalDeadlineMonth))) &&
        eval(getWeekOfYear($localDate.toString()) == getWeekOfYear($emailDate.toString())) 
    )
then
    System.out.println("Rule For 60 Days Called");      
    processData(licenseCredential, learnerCsvFileWriter, $expiryDate, $emailDate);
end

Möchte ich lokale Variablen deklarieren, in meiner Schleife. LicenseCredential ist eine Liste im Grunde. Wenn ich diese Regel bekomme ich Fehler, dass 

 text=Unable to resolve ObjectType 'licenseCredential.getCourseCompletionDate'], Message [id=2, level=ERROR, path=drools/rules/Rule.drl, line=71, column=0
   text=Unable to resolve ObjectType 'licenseCredential.getRenewalDeadlineDay'], Message [id=3, level=ERROR, path=drools/rules/Rule.drl, line=72, column=0
   text=Unable to resolve ObjectType 'licenseCredential.getRenewalDeadlineMonth'], Message [id=4, level=ERROR, path=drools/rules/Rule.drl, line=73, column=0
   text=Unable to resolve ObjectType 'getCurrentDate'], Message [id=5, level=ERROR, path=drools/rules/Rule.drl, line=74, column=0
   text=Unable to resolve ObjectType '$courseCompletionDate.getDate'], Message [id=6, level=ERROR, path=drools/rules/Rule.drl, line=75, column=0
   text=Unable to resolve ObjectType '$courseCompletionDate.getMonth'], Message [id=7, level=ERROR, path=drools/rules/Rule.drl, line=76, column=0
   text=Unable to resolve ObjectType 'getExpiryDate'], Message [id=8, level=ERROR, path=drools/rules/Rule.drl, line=77, column=0
   text=Unable to resolve ObjectType 'getEmailDate'], Message [id=9, level=ERROR, path=drools/rules/Rule.drl, line=78, column=0
   text=Unable to resolve ObjectType 'LocalDate.now'], Message [id=10, level=ERROR, path=drools/rules/Rule.drl, line=79, column=0
   text=Unable to resolve ObjectType 'Integer.valueOf'], Message [id=11, level=ERROR, path=drools/rules/Rule.drl, line=80, column=0
   text=Unable to resolve ObjectType 'Integer.valueOf'], Message [id=12, level=ERROR, path=drools/rules/Rule.drl, line=36, column=0

Wenn ich die Semikolon am Ende der einzelnen Variablen, wie 

$courseCompletionDate : licenseCredential.getCourseCompletionDate();
    $renewalDeadlineDay : licenseCredential.getRenewalDeadlineDay();
    $renewalDeadlineMonth : licenseCredential.getRenewalDeadlineMonth();
    $currentDate : getCurrentDate();
    $dayOfMonth : $courseCompletionDate.getDate();
    $month : $courseCompletionDate.getMonth();
    $expiryDate : getExpiryDate(licenseCredential);
    $emailDate : getEmailDate(2, licenseCredential);
    $localDate : LocalDate.now();
    $intRenewalDeadlineDay : Integer.valueOf($renewalDeadlineDay);
    $intRenewalDeadlineMonth : Integer.valueOf($renewalDeadlineMonth);

und ausführen der Regel bekomme ich Fehler, dass

$renewalDeadlineDay cannot be resolved to a variable
$renewalDeadlineMonth cannot be resolved to a variable
$currentDate cannot be resolved
$dayOfMonth cannot be resolved to a variable
$month cannot be resolved to a variable
$currentDate cannot be resolved
$dayOfMonth cannot be resolved to a variable
$month cannot be resolved to a variable
$localDate cannot be resolved
$emailDate cannot be resolved
$currentDate cannot be resolved
$intRenewalDeadlineDay cannot be resolved to a variable
$intRenewalDeadlineMonth cannot be resolved to a variable
$currentDate cannot be resolved
$intRenewalDeadlineDay cannot be resolved to a variable
$intRenewalDeadlineMonth cannot be resolved to a variable
$localDate cannot be resolved
$emailDate cannot be resolved
$expiryDate cannot be resolved to a variable
$emailDate cannot be resolved to a variable], Message [id=14, level=ERROR, path=drools/rules/Rule.drl, line=-1, column=0

Wie kann ich definieren von lokalen Variablen. Wie kann ich dies tun ?

Dank

---------------------------------
Edit

Hier, wie ich bin brennen Regeln

List<LicenseCredential> objectList = dao.select();
BusinessRuleProcessor ruleProcessor = (BusinessRuleProcessor)context.getBean("businessRuleProcessor");
ruleProcessor.configureAndApplyRulesOnObject(objectList);

public class BusinessRuleProcessor {
    ....
    public void configureAndApplyRulesOnObject(List<LicenseCredential> objectList){

        statelessKieSession.setGlobal("learnerCsvFileWriter", csvFileWriter);
        statelessKieSession.execute(objectList);

    }
}

--------------
Edit2:

Versucht und immer Fehler

rule "Renewal alert for 60 days"
when
    licenseCredential : LicenseCredential()

    $licenseCredentialCC : LicenseCredential($courseCompletionDate : courseCompletionDate)
    $licenseCredentialRDLD : LicenseCredential($renewalDeadlineDay : renewalDeadlineDay)
    $licenseCredentialRDLM : LicenseCredential($renewalDeadlineMonth : renewalDeadlineMonth)
    $licenseCredentialCD : LicenseCredential($currentDate : getCurrentDate())
    $licenseCredentialDOM : LicenseCredential($dayOfMonth : $licenseCredentialCC.getDate())
    $licenseCredentialM : LicenseCredential($month : $licenseCredentialCC.getMonth())
    $licenseCredentialEXD : LicenseCredential($expiryDate : getExpiryDate(licenseCredential))
    $licenseCredentialEMD : LicenseCredential($emailDate : getEmailDate(2, licenseCredential))
    $licenseCredentialLD : LicenseCredential($localDate : LocalDate.now())
    $licenseCredentialIRDLD : LicenseCredential($intRenewalDeadlineDay :  Integer.valueOf($licenseCredentialRDLD))
    $licenseCredentialIRDLM : LicenseCredential($intRenewalDeadlineMonth : Integer.valueOf($licenseCredentialRDLM))

    (
        eval($renewalDeadlineDay == "0" && $renewalDeadlineMonth == "0") && 
        eval($currentDate.after(getDate(2, $dayOfMonth, $month + 1))) && 
        eval($currentDate.before(getDate(1, $dayOfMonth, $month + 1 ))) &&
        eval(getWeekOfYear($localDate.toString()) == getWeekOfYear($emailDate.toString()))
     ) ||
    (
        eval($currentDate.after(getDate(2, $intRenewalDeadlineDay, $intRenewalDeadlineMonth))) &&
        eval($currentDate.before(getDate(1, $intRenewalDeadlineDay, $intRenewalDeadlineMonth))) &&
        eval(getWeekOfYear($localDate.toString()) == getWeekOfYear($emailDate.toString())) 
    )
then
    System.out.println("Rule For 60 Days Called");      
    processData(licenseCredential, learnerCsvFileWriter, $expiryDate, $emailDate);
end

Fehler:

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'autoalert-ksession-stateless': Cannot resolve reference to bean 'autoalert-kbase' while setting bean property 'kBase'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'autoalert-kbase': Invocation of init method failed; nested exception is java.lang.RuntimeException: Error while creating KieBase[Message [id=1, level=ERROR, path=drools/rules/Rule.drl, line=76, column=0
   text=Unable to Analyse Expression $licenseCredentialCC.getDate():
[Error: unable to resolve method using strict-mode: com.softech.vu360.autoalert.model.LicenseCredential.getDate()]
[Near : {... $licenseCredentialCC.getDate() ....}]
                              ^
[Line: 76, Column: 2]], Message [id=2, level=ERROR, path=drools/rules/Rule.drl, line=76, column=0
   text=Unable to analyze expression '$licenseCredentialCC.getDate()'], Message [id=3, level=ERROR, path=drools/rules/Rule.drl, line=77, column=0
   text=Unable to Analyse Expression $licenseCredentialCC.getMonth():
[Error: unable to resolve method using strict-mode: com.softech.vu360.autoalert.model.LicenseCredential.getMonth()]
[Near : {... $licenseCredentialCC.getMonth() ....}]
                              ^
[Line: 77, Column: 2]], Message [id=4, level=ERROR, path=drools/rules/Rule.drl, line=77, column=0
   text=Unable to analyze expression '$licenseCredentialCC.getMonth()'], Message [id=5, level=ERROR, path=drools/rules/Rule.drl, line=78, column=0
   text=Variables can not be used inside bindings. Variable   [licenseCredential] is being used in binding 'getExpiryDate(licenseCredential)'], Message [id=6, level=ERROR, path=drools/rules/Rule.drl, line=79, column=0
   text=Variables can not be used inside bindings. Variable [licenseCredential] is being used in binding 'getEmailDate(2, licenseCredential)'], Message [id=7, level=ERROR, path=drools/rules/Rule.drl, line=81, column=0
   text=Unable to Analyse Expression Integer.valueOf($licenseCredentialRDLD):
[Error: unable to resolve method using strict-mode: java.lang.Integer.valueOf(com.softech.vu360.autoalert.model.LicenseCredential)]
[Near : {... Integer.valueOf($licenseCredentialRDLD ....}]
                 ^
[Line: 81, Column: 2]], Message [id=8, level=ERROR, path=drools/rules/Rule.drl, line=81, column=0
   text=Unable to analyze expression 'Integer.valueOf($licenseCredentialRDLD)'], Message [id=9, level=ERROR, path=drools/rules/Rule.drl, line=82, column=0
   text=Unable to Analyse Expression Integer.valueOf($licenseCredentialRDLM):
    [Error: unable to resolve method using strict-mode: java.lang.Integer.valueOf(com.softech.vu360.autoalert.model.LicenseCredential)]
    [Near : {... Integer.valueOf($licenseCredentialRDLM ....}]
                 ^
    [Line: 82, Column: 2]], Message [id=10, level=ERROR, path=drools/rules/Rule.drl, line=82, column=0
   text=Unable to analyze expression 'Integer.valueOf($licenseCredentialRDLM)'], Message [id=11, level=ERROR, path=drools/rules/Rule.drl, line=60, column=0
   text=[ function processDataprocessData (line:60): learnerCsvFileWriter cannot be resolved
 ]],     Message [id=12, level=ERROR, path=drools/rules/Rule.drl, line=68, column=0
       text=Rule Compilation error The import drools.rules.ProcessData cannot be resolved
The operator + is undefined for the argument type(s) Object, int
The operator + is undefined for the argument type(s) Object, int
The method getDate(int, int, int) in the type Utility is not applicable for the arguments (int, Object, Object)
The method getDate(int, int, int) in the type Utility is not applicable for the arguments (int, Object, Object)
$expiryDate cannot be resolved to a variable
$emailDate cannot be resolved to a variable], Message [id=13, level=ERROR, path=drools/rules/Rule.drl, line=-1, column=0

Edit 3

rule "Renewal alert for 60 days"
when
    licenseCredential : LicenseCredential()

    $licenseCredential1 : LicenseCredential($courseCompletionDate : courseCompletionDate)
    $licenseCredential2 : LicenseCredential($renewalDeadlineDay : renewalDeadlineDay)
    $licenseCredential3 : LicenseCredential($renewalDeadlineMonth : renewalDeadlineMonth)
    $licenseCredential4 : LicenseCredential($currentDate : getCurrentDate())
    //$licenseCredential5 : LicenseCredential($dayOfMonth : licenseCredential.getCourseCompletionDate().getDate())
    //$licenseCredential6 : LicenseCredential($month : licenseCredential.getCourseCompletionDate().getMonth())
    //$licenseCredential7 : LicenseCredential($expiryDate : getExpiryDate(licenseCredential))
    //$licenseCredential8 : LicenseCredential($emailDate : getEmailDate(2, licenseCredential))
    $licenseCredential9 : LicenseCredential($localDate : LocalDate.now())

    (
        eval($renewalDeadlineDay == "0" && $renewalDeadlineMonth == "0") && 
        eval($currentDate.after(getDate(2, licenseCredential.getCourseCompletionDate().getDate(), licenseCredential.getCourseCompletionDate().getMonth() + 1))) && 
        eval($currentDate.before(getDate(1, licenseCredential.getCourseCompletionDate().getDate(), licenseCredential.getCourseCompletionDate().getMonth() + 1 ))) &&
        eval(getWeekOfYear($localDate.toString()) == getWeekOfYear(getEmailDate(2, licenseCredential).toString()))
     ) ||
    (
        eval($currentDate.after(getDate(2, Integer.valueOf($renewalDeadlineDay), Integer.valueOf($renewalDeadlineMonth)))) &&
        eval($currentDate.before(getDate(1, Integer.valueOf($renewalDeadlineDay), Integer.valueOf($renewalDeadlineMonth)))) &&
        eval(getWeekOfYear($localDate.toString()) == getWeekOfYear(getEmailDate(2, licenseCredential).toString())) 
    )

then
    System.out.println("Rule For 60 Days Called");      
    processData(licenseCredential, learnerCsvFileWriter, 2);
end

------------------
Edit 4

Hier ist mein LicenseCredential Klasse

public class LicenseCredential {
    private String learnerName;
    protected String firstName;
    protected String lastName;
    protected String learnerEmailAddress;
    private String userGUID;
    private Integer vu360UserId;
    private Integer courseId;
    protected String courseName;
    protected Date courseCompletionDate;
    private Integer credentialId;
    protected String officialLicenseName;
    private String shortLicenseName;
    private String renewalDeadLineType;
    private String renewalFrequency;
    private String renewalDeadlineDay;
    private String renewalDeadlineMonth; 
    private String hardDeadLineYear;
    private String staggeredBy;
    private String staggeredTo;
    protected String jurisdiction;
    protected String storefrontURL;

    // setters and getters
}

Hier ist meine Utility-Klasse

public class Utility {
    public static Date getDate(int monthsToBeSubtracted, int date, int month) throws Exception{
        Calendar c = Calendar.getInstance();        
        c.set(Calendar.MONTH, month-1);
        c.set(Calendar.DATE, date);
        c.set(Calendar.MONTH, c.get(Calendar.MONTH)-monthsToBeSubtracted);
        c.set(Calendar.YEAR, getCurrentDate().getYear()+1900);
        return c.getTime();
    }

    public static Date getCurrentDate(){
        Calendar c = Calendar.getInstance();
        return c.getTime();
    }

    public static int getWeekOfYear(String date) throws Exception{
        Date currentDate = new SimpleDateFormat("yyyy-MM-dd").parse(date);
        String weekOfYear = new SimpleDateFormat("w").format(currentDate);
        return Integer.valueOf(weekOfYear);
    }    

    public static LocalDate getExpiryDate(LicenseCredential licenseCredential) {

        if (licenseCredential.getRenewalDeadlineDay() == "0" && licenseCredential.getRenewalDeadlineMonth() == "0") {
            Date courseCompletionDate = licenseCredential.getCourseCompletionDate();
            ...
            return expiryDate;
        } else {
            ...
            return expiryDate;
        }

    }
}

Zuvor war diese Regel wie diese

rule "Renewal alert for 60 days"
when
    licenseCredential : LicenseCredential()
    (
        eval(licenseCredential.getRenewalDeadlineDay() == "0" && licenseCredential.getRenewalDeadlineMonth() == "0") && 
        eval(getCurrentDate().after(getDate(2, licenseCredential.getCourseCompletionDate().getDate(), licenseCredential.getCourseCompletionDate().getMonth()+1))) && 
        eval(getCurrentDate().before(getDate(1, licenseCredential.getCourseCompletionDate().getDate(), licenseCredential.getCourseCompletionDate().getMonth()+1))) 
     ) ||
    (
        eval(getCurrentDate().after(getDate(2, Integer.valueOf(licenseCredential.getRenewalDeadlineDay()), Integer.valueOf(licenseCredential.getRenewalDeadlineMonth()) ))) &&
        eval(getCurrentDate().before(getDate(1, Integer.valueOf(licenseCredential.getRenewalDeadlineDay()), Integer.valueOf(licenseCredential.getRenewalDeadlineMonth() )))) 
    )
then
    System.out.println("Rule For 60 Days Called");      
    processData(licenseCredential, "templates/Template.vm", "60Days", messageProducer);
end
Haben Sie importiert LicenseCredential in Ihre DRL-Datei?
bitte prüfen Sie daher mein edit. Dank
Ja, das ist in Ordnung, aber können Sie Ihre full DRL-Datei?
gerade getan habe, jetzt prüfen
Ihre Regel-definition fehlerhaft ist. Sie können nicht über Funktionszeiger, wie Sie diese definiert haben, in eine DRL-Datei.

InformationsquelleAutor Basit | 2015-03-05

  1. 2

    Während ich weiß nicht, was die Regel zu bewerten, das ist mehr wie die Art Ihrer Regel geschrieben werden soll. Ich weiß nicht, wie LicenseCredential deklariert ist, noch weiß ich, diese Util.getXyz Funktionen, so kann dies nicht funktionieren. Außerdem habe ich übersprungen, den letzten Zustand.

    rule "Renewal alert for 60 days"
when
licenseCredential : LicenseCredential(
      $courseCompletionDate : courseCompletionDate,
      $renewalDeadlineDay : renewalDeadlineDay == "0",
      $renewalDeadlineMonth : renewalDeadlineMonth == "0",
      $currentDate : currentDate after 
              getDate(2, $courseCompletionDate.getDate(),
                         $courseCompletionDate.getMonth()+1 ),
              && before
              getDate(1, $courseCompletionDate.getDate(),
                         $courseCompletionDate.getMonth()+1 ) )
then
    System.out.println("Rule For 60 Days Called");      
    processData(licenseCredential, learnerCsvFileWriter, 2);
end
    Hoffe, Sie verstehen, dass ich bin eigentlich versucht zu erreichen, schreiben von csv-Datei. Für diese habe ich Hinzugefügt, globalen Liste variable. Für Lernende, die kommen dann Teil ich fügte hinzu, die Lernenden zu meiner Liste. Und dann diese Liste verwenden, um zu schreiben, csv Datei.Und auch ich möchte schreiben gute Regel, meine die Art und Weise, in der Regel geschrieben werden soll. Dank
    Schreiben von Daten in eine Datei ist nicht das problem: Sie müssen wählen Sie die Daten korrekt. Ich weiß nicht, die Typen der Felder in der Klasse LicenseCredential - und was Sie bedeuten, und ich weiß nicht, was alle diese statischen Methoden aus der Klasse Utility tun - so bin ich nicht sicher, ob das, was ich geschrieben habe, ist korrekt. Aber jetzt haben Sie ein Beispiel für eine Regel, wie es geschrieben werden soll.
    Ich bearbeitete meinen code. Sie können sehen, dass es LicenseCredential Klasse. Welche Felder der Klasse haben, und was sind die Arten. Trotzdem danke für deine Hilfe. Du hast Recht, ich habe die Probe zumindest 🙂 Danke für Eure Hilfe.

    InformationsquelleAutor laune

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